Dr. Spock, I Presume?

Canadian doctors were shocked when they discovered a patient they were operating on bled green blood!

The patient had fallen asleep in a sitting position, which had caused what is called "compartment syndrome". The surgery to save his legs is known as a fasciotomie, where they make incisions to relieve the pressure in the affected areas. But when the incisions were made, the patient's blood was green!

As it turns out, he has been ingesting large amounts of Sumatriptan, a medicine which introduces sulphur into the bloodstream and turns it green. Dr. Spock, on the Star Trek series, had a human mother and Vulcan father. His blood was green because the oxygen-carrying agent in Vulcan blood carries copper, instead of iron, as is found in humans.

The patient's surgery went fine and he is recovering nicely. Green blood and all.